盡管國際油價上漲為成本端帶來一定支撐，但PPshichanggongxumaodunyirantuchu，zhengtijiaoyixintaipianxiangjinshen。diejianiandiqiyezijinhuilongdaozhiliudongxingqujin
，shichangduihouxuxuqiuyuqipianruo，duokongyinsuchixujiaolizhixia，yujijinrixingqingjiangchengzhendangpianruotaishi。